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Finding the Fourth Proportional to 63,369.19, 87,449.56 and 39,495.84

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Solution

The fourth proportional to 63,369.19, 87,449.56 and 39,495.84 is: 54,504.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,369.19 : 87,449.56 = 39,495.84 : x
  2. Step 2: Convert to fraction form
    63,369.19/87,449.56 = 39,495.84/x
  3. Step 3: Cross multiply
    63,369.19x = 87,449.56 × 39,495.84
  4. Step 4: Simplify right side
    63,369.19x = 3,453,894,207.14
  5. Step 5: Solve for x
    x = 3,453,894,207.14/63,369.19
  6. Step 6: Final answer
    x = 54,504.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.